Ignition System: Testing and Inspection

Ignition System

• For trouble free operation of the electrical components a voltage of at least 11.5 volts is necessary.

• It is possible that the control module will recognize a malfunction and store a Diagnostic Trouble Code (DTC) during some tests. After completing all tests and repairs, the DTC memory should therefore be checked and erased if necessary. Refer to => [ Engine Control Module DTC Memory, Checking and Erasing ] Reading and Clearing Diagnostic Trouble Codes.

• If the engine only starts briefly and then shuts off again after troubleshooting, repairs or checking of components, it may be that the immobilizer is blocking the Engine Control Module (ECM). The ECM may have to be adapted then. Refer to Vehicle diagnosis, testing and information system "Guided Functions".